subEchelon (desc Brigade ? ?) (desc Battalion ? ?)

subEchelon (desc Battalion ? ?) (desc Company_Military ? ?)

commandRankOfEchelon (desc Battalion ? ?) (el ? ? ? USMilitaryRankO5)

subEchelon (desc Company_Military ? ?) (desc Platoon ? ?)

commandRankOfEchelon (desc Company_Military ? ?) (el ? ? ? (UnionFn (el ? ? ? USMilitaryRankO3) (el ? ? ? USMilitaryRankO4)))

commandRankOfEchelon (desc Platoon ? ?) (el ? ? ? USMilitaryRankO2)